| Acy-en-Multien | |
| Commune Status: | Commune |
| Arrondissement: | Senlis |
| Canton: | Nanteuil-le-Haudouin |
| Insee: | 60005 |
| Postal Code: | 60620 |
| Mayor: | Jean-Michel Ramiz[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Pays de Valois |
| Coordinates: | 49.1058°N 2.9553°W |
| Elevation M: | 90 |
| Elevation Min M: | 77 |
| Elevation Max M: | 140 |
| Area Km2: | 11.47 |
Acy-en-Multien (pronounced as /fr/) is a commune in the Oise department in northern France.